Desert Mule Deer Ecology and Habitat Use on Cattle-grazed Grass-shrub Range PDF Download
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Author: Kim Elizabeth Ragotzkie
Publisher:
ISBN:
Category : Habitat selection
Languages : en
Pages : 204
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Book Description
Author: Kim Elizabeth Ragotzkie
Publisher:
ISBN:
Category : Habitat selection
Languages : en
Pages : 204
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Book Description
Author: Eric Richard Loft
Publisher:
ISBN:
Category : Cattle
Languages : en
Pages : 314
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Book Description
Concern cattle were having negative impacts on female mule deer prompted a study of their relationships on summer range in the Sierra Nevada. There were three phases of the study: determine the influence of cattle grazing leve on habitats; determine habitat selection patterns of radio collared does and cattle; determine the influence of cattle grazing level on doe home range and spatial use patterns. To examine these relationships, the McCormick Creek Basin was divided into three grazing units for manipulating cattle stocking level. Home ranges increased in area as grazing level increased, with deer more evenly using their home ranges. Observations indicated that does mainted greater distances from cattle than expected and temporarily avoided areas of overlap when cattle were present. With the exception of aspen stands, deer did not avoid areas grazed by cattle. Consistent with competition theory, cattle caused deer to increase browse consumption, alter their habitat use patterns to include undesirable habitats, enlarge their home range areas, and temporarily avoid cattle.--Adapted from abstract.
Author: Ronald G. Horejsi
Publisher:
ISBN:
Category : Browse (Animal food)
Languages : en
Pages : 58
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Author: Elizabeth S. Bellantoni
Publisher:
ISBN:
Category : Cervidae
Languages : en
Pages : 54
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Author: Jim Heffelfinger
Publisher: Texas A&M University Press
ISBN: 1603445331
Category : Nature
Languages : en
Pages : 311
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Book Description
Author Jim Heffelfinger presents a wide array of data in a reader-friendly, well-organized way. With a clear mission to make his information not only helpful, but entertaining and attractive as well, each chapter focuses on a specific aspect of understanding deer. The clear, detailed table of contents will help readers flip right to the section they want to investigate. Not just hunters, but anyone who is interested in the deer of West Texas, Arizona, New Mexico, southern California, Nevada, Utah, Colorado, northern Mexico, or tribal lands will find this book to be an indispensable resource for understanding these familiar and fascinating animals. “Very few books on the subject of deer in any particular region lend themselves to being complete. Jim Heffelfinger’s book breaks the mold. It is by far the most comprehensive book on mule deer and white-tailed deer in the southwestern part of the United States, including Plains portions of Texas, Colorado, and New Mexico, I’ve ever read. Everything you ever wanted to know about these two deer species can be found in its pages . . . All of this under one cover and written in a style easy enough for the layperson to understand, but scientific enough for the professional biologist . . . Deer of the Southwest is a pleasure to read and should be part of every deer enthusiast’s library.”—Great Plains Research “An important reference for anyone interested in deer in the Southwest—managers and enthusiasts alike. Both enlightening and instructive, Deer of the Southwest is the ultimate source for understanding the history, management, and issues facing this resource. Jim Heffelfinger has solidified his reputation as the premier authority on deer in this region.”—Barry Hale, deer program manager, New Mexico Department of Game and Fish
Author: James R. Heffelfinger
Publisher: CRC Press
ISBN: 1000851559
Category : Science
Languages : en
Pages : 537
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Book Description
Black-tailed and mule deer represent one of the largest distributions of mammals in North America and are symbols of the wide-open American West. Each chapter in this book was authored by the world’s leading experts on that topic. Both editors, James R. Heffelfinger and Paul R. Krausman, are widely published in the popular and scientific press and recipients of the O. C. Wallmo Award, given every two years to a leading black-tailed and mule deer expert who has made significant contributions to the conservation of this species. In addition, Heffelfinger has chaired the Mule Deer Working Group sponsored by the Western Association of Fish and Wildlife Agencies for more than 15 years. This working group consists of the leading black-tailed and mule deer experts from each of 24 states, provinces, and territories in western North America, putting them at the forefront of all conservation and much of the research on this species. The book represents all current knowledge available on these deer, including how changing conditions such as fires, habitat alteration and loss, disease, climate change, socio-economic forces, energy development, and other aspects are influencing their distribution and abundance now and into the future. It takes a completely fresh look at all chapter topics. The revisions of distribution, taxonomy, evolution, behavior, and new and exciting work being done in deer nutrition, migration and movements, diseases, predation, and human dimensions are all assembled in this volume. This book will instantly become the foundation for the latest information and management strategies to be implemented on the ground by practitioners and to inform the public. Although this book is about deer, the topics discussed influence most terrestrial wildlife worldwide, and the basic concepts in many of the chapters are applicable to other species.
Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 304
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 404
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 578
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 220
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About 1,600,000 ha of desert mule deer range in Mexico are currently altered with vegetation clear-cutting and establishment of buffelgrass pastures. Consequently, the availability of resources as cover and forage from scrub vegetation has been reduced for mule deer. No previous research has been conducted to investigate how desert mule deer respond to those alterations. Therefore, the purpose of this research was to examine movements of mule deer, evaluate their home range sizes and determine habitat use, and analyze their diets in areas of central and western Sonora, Mexico. The approach involved the use of radiotelemetry techniques and GIS programs to calculate home range sizes, examine selection of vegetation associations, and identify the specific components of habitat that distinguished the characteristics of selected sites by desert mule deer. I used the microhistological technique to determine botanical components of desert mule deer diets, and compare diets of desert mule deer and cattle in habitat with buffelgrass pastures. Diet analyses included spatial and temporal comparisons of diversity and similarity indices. Sizes of home ranges were larger in the more arid environments of western Sonora (27.3 km2) than in central Sonora (14.5 km2). Desert mule deer used altered habitat differently than use areas without buffelgrass, however, there was no difference in the size of home ranges of mule deer from inside buffelgrass areas and the size of home ranges of deer in native scrub vegetation. Thermal cover, ground cover, and percent of gravel in the ground were the variables that distinguished locations selected by desert mule deer. Desert mule deer selected xeroriparian vegetation and sites closer to water sources. Water sources may have influenced mule deer to stay in buffelgrass areas despite the lack of cover and forage from shrubs and trees. For diets of mule deer, I identified 96 plant species, 69 of which have not previously been reported as forage for this herbivore. Desert mule deer and cattle shared 45 forage species from central Sonora. However, biological overlap of diets occurred only for spring. Results from these studies provide information to understand ecological relationships of desert mule deer on altered habitats.
